lines of 1, 3, 5, 3, 1 blocks with the same center column

Q: Can you divide this shape into 4 equal parts, and then form a square?

This puzzle was published by Henry Dudeney who received the puzzle from Edward B. Escott.

  • $\begingroup$ Well the problem is that you must make a square whit the 4 equal parts, there can be no leftovers, and nothing may overlap. $\endgroup$
    – user16539
    Commented Sep 25, 2015 at 9:15

1 Answer 1


You can do it like this:


The cut starts right in the center of those sides.


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